Manhole step



FIG. 1 is an isometric view of the manhole step.

FIG. 2 is another isometric view of the manhole step of FIG. 1.

FIG. 3 is a top view of the manhole step of FIG. 1.

FIG. 4 is a right side view of the manhole step of FIG. 1.

FIG. 5 is a bottom view of the manhole step of FIG. 1.

FIG. 6 is a left side view of the manhole step of FIG. 1.

FIG. 7 is a front view of the manhole step of FIG. 1; and,

FIG. 8 is a rear view of the manhole step of FIG. 1.

The broken lines in the drawings denote environmental structure that form no part of the claimed design. 

CLAIM The ornamental design for a manhole step, as shown and described. 